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19 - PopEcology

QuestionAnswer
Population Ecology The study of the # of a particular organism that is found in an area and why that number changes or stays fixed over time. It deals with not only the total # of organisms, but also with their distribution and how they interact with each other.
Population A group of organisms of a single species living in a particular area at a given time. Example: 10/acre; 10/mile
Population Density The # of individuals per unit area at a given time. This density is a function of the type of habitat (resource-rich) and time (year, month, etc). During good years or months the population may increase and during lean times it may decrease.
Range The geographic limit of its distribution. For example, the range of a particular species may be the southern Appalachian mountains or the Flint Hills. Within this range individuals may be dispersed in one of several ways
Random Distribution (Range) When individuals are spaced unpredictably (randomly). Rare Example: four beetles in flour; maggots on/in meat Usually live in/on food.
Created by: mfreese88
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